图为胃内超声所见胃各层表现，自内向外第一层为（）
A.粘膜
B.粘膜下层
C.固有肌层
D.浆膜层
E.浆膜下层
参考答案：A
He went to America to improve his English _________ to make money, according to his parents.
A．other than
B．more than
C．rather than
D．better than
尖峰吸收器的作用？
